#include<conio.h>
#include<stdio.h>
#include<iostream>
using namespace std;

class CRectangle
{
	int width, height;
public:
	CRectangle();
	CRectangle(int , int );
	int area();
};
CRectangle::CRectangle()
{
	width=5;
	height=5;
}
CRectangle::CRectangle(int a, int b)
{
	width=a;
	height=b;

}
int CRectangle::area()
{
	return (width*height);
}
int main()
{
	CRectangle recta(3,4);
	CRectangle rectb;
	cout<<"area a:"<<recta.area();
	cout<<"\narea b"<<rectb.area();
	getch();
	return 0;
}